If I don't refer jquery.unobtrusive-ajax.js
I can get attachment on Post. If I refer it It's giving me null.
<script src="~/Scripts/jquery.unobtrusive-ajax.js"></script>
@using (Ajax.BeginForm("Index", "ContactSubmission", new AjaxOptions{ InsertionMode = InsertionMode.Replace, HttpMethod = "POST", OnSuccess = "updateSuccess" },
new { enctype = "multipart/form-data",@class = "form-horizontal", role = "form" }))
{
///code here
}
[HttpPost]
public JsonResult Index(Contact contact)
{
if (ModelState.IsValid)
{
if (contact != null)
{
string attachment = string.Empty;
// HttpPostedFileBase Attachment
if (contact.Attachment != null) attachment = SaveFile(contact.Attachment);
......
How to handle this?
I modify the jquery.unobtrusive-ajax.js
to work uploading files.
First modification:
$(document).on("submit", "form[data-ext=true]", function (evt) {
var clickInfo = $(this).data(data_click) || [],
clickTarget = $(this).data(data_target),
isCancel = clickTarget && clickTarget.hasClass("cancel");
evt.preventDefault();
if (!isCancel && !validate(this)) {
return;
}
var formData;
if (this.enctype && this.enctype === "multipart/form-data") {
formData = new FormData(this);
} else {
formData = clickInfo.concat($(this).serializeArray());
}
asyncRequest(this, {
url: this.action,
type: this.method || "GET",
data: formData
});
});
Second modification is in asyncRequest
:
....
method = options.type.toUpperCase();
if (options.data instanceof FormData) {
options.processData = false;
options.contentType = false;
options.data.append("X-Requested-With", "XMLHttpRequest");
if (!isMethodProxySafe(method)) {
options.type = "POST";
options.data.append("X-HTTP-Method-Override", method);
}
} else {
options.data.push({ name: "X-Requested-With", value: "XMLHttpRequest" });
if (!isMethodProxySafe(method)) {
options.type = "POST";
options.data.push({ name: "X-HTTP-Method-Override", value: method });
}
}
...
If you don't refer jquery.unobtrusive-ajax.js
, you don't get the ajax
form, but a regular HTML form. And if you do, I suppose the form works fine, but it is not possible to upload a file with it, as ajax does not allow multipart/form-data
enctype.
You can use HTML 5 File API (Using files from web applications) or jQuery upload plugins.